Serves6 to 8
                    
                
                
                    
                        
                            - Active time:30 min
 
                        
                            - Start to finish:5 3/4 hr (includes cooling)
 
                        
                    
                
             
            
            
                
                
                
    
      
          
          
          
              
              
              
          
          
          
          
          
              
              
              August 2001
            
          
          
      
  
                
                
            
            
            
                Bilberries are a smaller, tarter relative of the blueberry. (You can use either in this pie created by Upper Peninsula artist Phyllis Fredendall.) Given the May to July season of rhubarb, and the July to September season of bilberries and blueberries, you might have to use frozen rhubarb for this recipe, but the pie will still be a standout.
            
            
            
            
            
                
                    
                    
                    
                        
                            For dough
                            
                            
                                
                                    
                                        - 
                                            2 1/4
                                            cups
                                            unbleached all-purpose flour
                                            
                                        
 
                                    
                                        - 
                                            3/4
                                            teaspoon
                                            salt
                                            
                                        
 
                                    
                                        - 
                                            3/4
                                            cup
                                            cold vegetable shortening
                                            
                                        
 
                                    
                                        - 
                                            5 to 6
                                            tablespoons
                                            ice water
                                            
                                        
 
                                    
                                
                            
                         
                    
                        
                            For filling
                            
                            
                                
                                    
                                        - 
                                            3
                                            cups
                                            1-inch pieces fresh or thawed drained frozen rhubarb (1 lb)
                                            
                                        
 
                                    
                                        - 
                                            3
                                            cups
                                            fresh bilberries or blueberries
                                            
                                        
 
                                    
                                        - 
                                            2
                                            teaspoons
                                            fresh lemon juice if using blueberries
                                            
                                        
 
                                    
                                        - 
                                            1 1/3 
                                            cups
                                            sugar
                                            
                                        
 
                                    
                                        - 
                                            1/2
                                            cup
                                            unbleached all-purpose flour
                                            
                                        
 
                                    
                                        - 
                                            2
                                            tablespoons
                                            unsalted butter, cut into bits
                                            
                                        
 
                                    
                                
                            
                         
                    
                 
            
            
            
            
            
            
            
            
                
                    
                    
                    
                        
                            
                                Make dough:
                                
                                
                                    
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Sift flour and salt into a bowl (or food processor) and blend in shortening with your fingertips or a pastry blender (or pulse in processor) until mixture resembles coarse meal with some roughly pea-size lumps.
                                         
                                    
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Drizzle 4 tablespoons ice water evenly over mixture and gently stir with a fork (or pulse in processor) until incorporated.
                                         
                                    
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Gently squeeze a small handful of dough: If it doesn’t hold together, add more ice water, 1 tablespoon at a time, stirring (or pulsing) after each addition until just incorporated, continuing to test. (If you overwork dough or add too much water, pastry will be tough.)
                                         
                                    
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Divide dough in half and form each half into a disk. Wrap disks separately in wax paper and chill 30 minutes.
                                         
                                    
                                
                             
                        
                            
                                Make filling:
                                
                                
                                    
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Gently toss together rhubarb, berries, and, if using blueberries, lemon juice in a large bowl. Whisk together sugar and flour in a small bowl and add to fruit, tossing to combine.
                                         
                                    
                                
                             
                        
                            
                                Assemble and bake pie:
                                
                                
                                    
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Put a shallow (1-inch-deep) baking pan in lower third of oven and preheat oven to 425°F.
                                         
                                    
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Roll out 1 piece of dough between 2 sheets of wax paper into a 12-inch round. Peel 1 piece of wax paper from dough and invert dough onto a 9-inch (3-cup) glass pie plate, carefully removing remaining piece of wax paper. Fit dough into pie plate and trim overhang to 1/2 inch. Spoon filling into crust and dot with butter.
                                         
                                    
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Roll out remaining dough in same manner. Peel 1 piece of wax paper from dough and invert onto pie, carefully removing remaining piece of wax paper. Fold edge of top crust under bottom crust and crimp decoratively.
                                         
                                    
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Cut 4 vents in top crust with a sharp knife and bake pie in hot baking pan 15 minutes.
                                         
                                    
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Reduce oven temperature to 375°F and continue baking pie until crust is golden and juices are bubbling, 50 to 60 minutes more.
                                         
                                    
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Transfer pie to a rack to cool to just warm, about 4 hours.